Packing



P 1931. H. R. WILLIAMS 1,824,061 I PACKING Fil ed March 9, 1927 PatentedSept. 1931 UNITED STATES mmson n. wrrums, or New Your, 1v. Y.

PAGKIN G Application filed March 9, 1827. Serial No. 173,909.

This invention relates to improvements in packing intended for use as a.protecting pador lining for boxes or other containers intended to holdarticles that are easily crushed or injured by jarring or scratching.

It is an object of the invention to provide a packing which is cheap tomanu acture, which is extremely soft and therefore shock absorbing, andwhich is water repellent, for m protecting the articles from damage byrough handling or by moisture. It is a further object to provide apacking, the outer surface of which is indented to give a novelconstructionhaving increased resilency and strength. v

Otherobjects and advantages will hereinafter appear.

Figure 1 of the drawings is a fragmentary perspective view of apreferred illustrative go embodiment of the invention;

Figure 2 is a view in section taken along line 2.-2 of Figure 1, and

Figure 3 is a perspective view of a modification.

The packing comprises a body portion 1 of loosely felted wood fiberswhich are adhesively connected to a water repellent backing 3 of glazedpaper desirably of the type of paper commercially known as glassine.However, if desired, wax. paper, or a low grade of wrapping paper orother material may be used as a backing. The body portion 1 consists ofa single, thick padding layer of wood fiberswhich are chemically treatedto make them soft and cottony the material being, for example, like thatdescribed as the primary product in my pending application, Serial No.111,390, filed May 24 1926, for wood-pulp products and the li e. Theseform a packing felt which is resilent and very soft and thereforeafiords substantial rotection to soft articles or easily breaka learticles such as candy, eggs, etc.

The making of the paddingbody of felted wood fibers results in theproduction of a packing which is less expensive, and more effective thanpackings heretofore used for like purposes.

In the manufacture of my improved pack- .50 ing, the. outer surface ofthe wood-fiber is preferably thollillln not necessarily covered with asuitable s 2. This sln'n may con sist of either a sheet of thin paper,or it may be formed of the fibers themselves, by incorporating the outerlayer with a thickening material which in some cases may resemble aglaze. The coating of whatever type used having been ap lied, the outersurface is indented by suita le means, so as to give the appearance ofFigure 2, producing lines of indentation 0, along which the outercoating is broughtsubstantially into contact with t e glassine underlayer 3. In the usual case the outer layeror skin 2 will not quite meetthebacking but will include a rather as thin layer of fibers as shown inFigure 2. Such la er, however, does not prevent the outer skm 2 fromadhering along the lines of indentation and furthermore gives addedstrength to the fabric. Previously the layer of material Z has been fedout upon the lassine or other layer 3 and caused to a here thereto bymeans of a layer of adhesive 4. In this wa a packing is produced whichin a borrowe sense is tufted and which has increased resiliency byvirtue of such construction. This is important when the packing is usedfor candy wadding as it enables the wadding to adjust itself between thetop of the box and the candy,'while preserving the necessary resiliency.Moreover, the produced fabricis conveniently parted along such'lines ofindentation.

If desired, the indenting of the surface of the packing instead ofextending substantially all the way to the bottom layer or covering maybe merely embossed whereby the indentation extends only a slightdistance interiorly of the packing. This construction is shown in Figure3 and. achieves the result of causing; the digested wood-fibre or othermaterial better to adhere to the glassine or other backing. While thisform preserves certain features of the invention and is satisfactory formany purposes, I do not prefer it to the tufted type described.

An example of a suitable thickening agent to be employed is a mixture"in water of starch, gum arabic and a small quantity of j glue, cookedwith steam with tallow and a small amount of g1 cerine.

Such packings o the prior art ordinarily consist of a multiplicity oftissue paper packings necessitates the use of expensive papermanufacturing machinery, and this machinery must be used formanufacturing each individual paper ply separately. The numerousseparately manufactured plies must then be assembled, and this assemblyis necessarily complicated by the fact that a large number of plies gointo the manu-' facture of each packing.

' The present packing in either of the forms shown is softer and moreshock absorbin than tissue paper packing and therefore a fords a greatermeasure of protection to the articles in the container than previouspackings of like thickness. It may, moreover, be constructed of anythickness desired without increasing the number of manufacturing stepsand without complicating the assembly.

Variations may be resorted to within the scope of the invention andparts of the improvements may be used without others.

What I claim is:

1. A packing sheet for fragile articles consisting of soft,unlaminated', loosely felted fibers and a backing of thin, relativelystrong fabric, said soft material having an outer skin and havingspaced, intersecting lines of indentation in the soft material such thatsaid outer coating is substantially united to the backing along suchlines of indentation, thereby forming a tufted construction.

2. A packing sheet for fragile articles consisting of a backing of thinrelatively strong fabric and a relatively thick unitary, substantiallyhomogeneous, paddin of soft, loosely felted unlaminated wood fi er andcontaining an outer skin on the outer surface thereof'formed of thepadding material, said padding layer having indentations in its surfaceso as to cause the skin to substantially extend to said backing alongthe lines of the indentation, such indentations being arranged so as togive the sheeting a tufted construction. I

3. A packing sheet for fragile articles consisting of a backing of thin,relatively strong fabric, and a relatively thick, uniform andsubstantially homogeneous unlaminated paddmg of soft, loosely feltedwoodfibre, and having an outer skin formed of the fibres themselvesimpregnated by a suitable thickening agent.

In testimony whereof I have afiixed my signature to this specification.

HARRISON R. WILLIAMS.

lies of tissue paper. The manufacture of t ese laminated v

